My Inquiry
My Account
Texas Instruments LM2904BAIDGKR
- Part No.:
- LM2904BAIDGKR
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
LM2904BAIDGKR.pdf
- Description:
- DUAL, 36-V, 1.2-MHZ, 2-MV OFFSET
- Quantity:
- Payment:
- Shipping:
Inventory:8,539
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
LM2904BAIDGKR from Texas Instruments is a dual operational amplifier optimized for cost-sensitive industrial and automotive applications, featuring 3V–36V supply range, 300µA/ch quiescent current, 1.2MHz unity-gain bandwidth, ±2mV max input offset voltage at 25°C, and rail-to-rail input common-mode range including ground - enabling direct low-side current sensing in motor control and power supply feedback loops.
For engineers reviewing the LM2904BAIDGKR datasheet, LM2904BAIDGKR pinout, LM2904BAIDGKR application, or LM2904BAIDGKR equivalent, this page delivers verified package mapping (VSSOP-8), validated pin functions, temperature-rated performance (−40°C to +125°C), EMI/RF filtering, and real-world substitution guidance for high-reliability embedded analog signal conditioning.
Technical Context
The LM2904BAIDGKR implements two independent high-voltage op amps with internal RF/EMI filters and unity-gain stable architecture. Its input stage supports common-mode voltages down to V−, eliminating level-shifting requirements in single-supply systems such as 24V industrial PLC I/O modules and 12V/24V automotive body control units.
Designed for robust operation across extended temperature ranges, it maintains ≤±3.0mV input offset voltage over −40°C to +125°C and delivers 70–140 V/mV open-loop gain with 0.5 V/µs slew rate - suitable for precision DC-coupled amplification, active filtering, and comparator-based threshold detection without external hysteresis.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 3V to 36V - supports wide-input industrial power rails and automotive battery variations without external regulation. |
| Input Offset Voltage (max, 25°C) | ±2 mV - enables accurate low-level signal amplification (e.g., shunt-based current sensing) without trimming. |
| Quiescent Current per Channel | 300 µA - allows battery-backed or energy-constrained designs (e.g., smart sensors) to maintain dual-channel analog front-end operation. |
| Unity-Gain Bandwidth | 1.2 MHz - sufficient for anti-aliasing filters, sensor signal conditioning up to ~100 kHz, and closed-loop stability in power supply error amplifiers. |
| Common-Mode Input Range | Includes V− (ground) - permits direct interfacing with low-side current sense resistors and single-supply transducer outputs. |
| Operating Temperature Range | −40°C to +125°C - qualified for under-hood automotive, industrial motor drives, and outdoor power electronics environments. |
| ESD Rating (HBM) | ±2000 V - enhances reliability during PCB handling and field deployment in electrically noisy settings. |
Pinout & Package
VSSOP-8 (DGK) package: 3.0 mm × 4.9 mm footprint, thermally enhanced, lead-free, RoHS-compliant surface-mount package optimized for space-constrained industrial and automotive PCB layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OUT1) | Output of Amplifier 1 | Drives feedback networks or downstream circuitry; capable of sourcing/sinking ±20 mA into resistive loads. |
| 2 (IN1−) | Inverting Input of Amplifier 1 | Accepts differential or single-ended signals; common-mode range extends to V− for ground-referenced inputs. |
| 3 (IN1+) | Non-Inverting Input of Amplifier 1 | Used for reference-based amplification or comparator configurations; matched bias current minimizes offset errors. |
| 4 (V−) | Negative Supply / Ground | Serves as return path for both amplifiers; supports true single-supply operation with inputs referenced to system ground. |
| 5 (IN2+) | Non-Inverting Input of Amplifier 2 | Independent channel input; identical electrical characteristics to Pin 3 for dual-sensor or dual-loop applications. |
| 6 (IN2−) | Inverting Input of Amplifier 2 | Matches Pin 2 performance; enables simultaneous processing of two analog channels without crosstalk degradation. |
| 7 (OUT2) | Output of Amplifier 2 | Electrically isolated output stage; supports independent load driving up to 100 pF capacitive load. |
| 8 (V+) | Positive Supply | Accepts up to 36V DC; internal protection ensures safe operation across transient surges typical in 24V industrial buses. |
Key Features
| Feature | Design Value |
|---|---|
| Internal RF and EMI Filter | Reduces susceptibility to conducted and radiated noise in motor drive and switching power supply environments. |
| Rail-to-Rail Input Common-Mode Range | Eliminates need for external level shifters when interfacing with ground-referenced sensors or DAC outputs. |
| Low Quiescent Current (300 µA/ch) | Enables always-on analog monitoring in battery-powered edge nodes without compromising runtime. |
| High ESD Robustness (2 kV HBM) | Reduces field failure risk during assembly and end-use in unshielded industrial enclosures. |
| Extended Temperature Operation (−40°C to +125°C) | Guarantees parametric performance in engine compartments, inverters, and outdoor power conversion systems. |
Applications
| Motor Control Feedback | Industrial Power Supply Monitoring |
|---|---|
Use Scenario: Real-time current sensing in brushed DC and BLDC motor drivers using low-side shunt resistors. IC Role / Device Role / Timing Role: Dual-channel amplifier providing isolated current and voltage loop error signals for PWM controller input. Use Value: ±2mV offset enables <1% full-scale error in 100mΩ shunt measurements at 1A, supporting precise torque and speed regulation. | Use Scenario: Output voltage regulation and overvoltage protection in 24V/48V telecom and server PSUs. IC Role / Device Role / Timing Role: Dual op amp configured as error amplifier and comparator for fast fault response. Use Value: Unity-gain stability and 1.2MHz bandwidth allow tight regulation loop compensation without external phase compensation components. |
| Automotive Body Control Unit | Smart Appliance Sensor Interface |
Use Scenario: Signal conditioning for cabin temperature, humidity, and seat occupancy sensors in 12V vehicle platforms. IC Role / Device Role / Timing Role: Dual amplifier buffering and scaling analog sensor outputs before ADC sampling. Use Value: −40°C to +125°C rating and 2kV HBM ESD ensure reliable operation across vehicle lifecycle without derating. | Use Scenario: Interfacing thermistors, pressure transducers, and flow meters in HVAC and laundry systems. IC Role / Device Role / Timing Role: Precision DC amplification and filtering prior to microcontroller ADC input. Use Value: Rail-to-rail input capability allows direct connection to grounded sensor bridges, reducing BOM count and layout complexity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM2904BIDR | SOIC-8 package; ±3mV max offset (vs. ±2mV); same 300µA/ch IQ and 1.2MHz GBW. | Lower thermal resistance (124.7°C/W vs. 181.4°C/W) but larger footprint; suited for less space-constrained boards. | Select when board area is not limiting and legacy SOIC compatibility is required. |
| LM358BAIDR | Same VSSOP-8 package; identical ±2mV offset and 300µA/ch IQ, but rated only to +85°C ambient (vs. +125°C). | Not qualified for under-hood or high-temp industrial use; limited to commercial/industrial indoor applications. | Choose only for cost-sensitive non-automotive designs where ambient temperature stays below 85°C. |
Compared with LM2904BIDR and LM358BAIDR, the LM2904BAIDGKR uniquely combines VSSOP-8 miniaturization, automotive-grade temperature range, and the lowest guaranteed offset voltage - making it optimal for next-generation compact, high-reliability analog signal chains.
Availability
LM2904BAIDGKR is available at Aetrix Electronics and suitable for motor control feedback, industrial power supply monitoring, and automotive body control unit applications requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for LM2904BAIDGKR includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Texas Instruments is a global semiconductor leader delivering analog and embedded processing solutions for industrial, automotive, and personal electronics markets.
The LM2904BA series belongs to TI's industry-standard dual op amp product line, engineered specifically for ruggedized, cost-optimized analog signal conditioning in harsh-environment applications including motor drives, power supplies, and automotive subsystems.
FAQ
What is the maximum operating temperature for the LM2904BAIDGKR?
The LM2904BAIDGKR is specified for operation from −40°C to +125°C ambient temperature. This extended range is validated per TI's characterization and testing protocols for the BA-grade variant and makes the device suitable for under-hood automotive applications, industrial motor drives, and outdoor power electronics where thermal stress is significant. The LM2904BAIDGKR maintains its ±2mV input offset voltage specification across this full range.
Does the LM2904BAIDGKR support single-supply operation with inputs at ground potential?
Yes, the LM2904BAIDGKR supports true single-supply operation with common-mode input voltage range extending to V− (ground). This feature enables direct interface with grounded shunt resistors, thermistors, and other ground-referenced sensors without level-shifting circuitry. Its input stage is designed to operate linearly at V−, unlike older LM2904 variants that require a minimum headroom above ground.
What is the capacitive load drive capability of the LM2904BAIDGKR?
The LM2904BAIDGKR is characterized to safely drive up to 100 pF of capacitive load while maintaining stability and specified phase margin (≥56°). This capability supports direct connection to ADC input capacitors, long PCB traces, and small ceramic filter networks without external isolation resistors - simplifying layout in compact sensor signal chains and power supply feedback paths.
How does the LM2904BAIDGKR differ from the standard LM2904B in terms of offset voltage?
The LM2904BAIDGKR guarantees a maximum input offset voltage of ±2 mV at 25°C, whereas the LM2904B (non-BA) version specifies ±3 mV max at the same condition. This tighter offset spec improves accuracy in precision DC amplification tasks such as current sensing and bridge transducer conditioning, reducing calibration burden and improving system-level measurement repeatability without additional trimming components.
Is the LM2904BAIDGKR pin-compatible with other VSSOP-8 dual op amps like the LM358BAIDGKR?
Yes, the LM2904BAIDGKR is pin-compatible with the LM358BAIDGKR in the VSSOP-8 (DGK) package - sharing identical pinout, footprint, and solder mask layout. However, the LM2904BAIDGKR is rated for −40°C to +125°C operation, while the LM358BAIDGKR is rated only to +85°C. Electrical parameters including supply range (3–36V vs. 3–30V) and ESD rating (2kV HBM vs. 500V HBM) also differ significantly between the two families.
LM2904BAIDGKR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 2
- Output Type:
- Push-Pull
- Slew Rate:
- 0.5V/µs
- Gain Bandwidth Product:
- 1.2 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 10 nA
- Voltage - Input Offset:
- 2 mV
- Current - Supply:
- 300µA (x2 Channels)
- Current - Output / Channel:
- 30 mA
- Voltage - Supply Span (Min):
- 3 V
- Voltage - Supply Span (Max):
- 36 V
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-VSSOP
LM2904BAIDGKR FAQ
1.How can I place an order for LM2904BAIDGKR through Aetrix?
Please submit a Request for Quotation (RFQ) for LM2904BAIDGKR on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for LM2904BAIDGKR reliable?
The price and inventory of LM2904BAIDGKR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LM2904BAIDGKR is usually 5 days.
3.What payment methods are accepted for LM2904BAIDGKR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LM2904BAIDGKR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LM2904BAIDGKR?
LM2904BAIDGKR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LM2904BAIDGKR order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for LM2904BAIDGKR?
For technical support, including LM2904BAIDGKR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LM2904BAIDGKR requirements.
6.How does Aetrix verify that LM2904BAIDGKR is sourced from the original manufacturer or authorized distributors?
All LM2904BAIDGKR products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that LM2904BAIDGKR meets industry standards.
7.What is the process for return or replacement of LM2904BAIDGKR?
All LM2904BAIDGKR units undergo pre-shipment inspection (PSI). If there is an issue with LM2904BAIDGKR, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The LM2904BAIDGKR part is unused and in its original packaging.
Return procedure for LM2904BAIDGKR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LM2904BAIDGKR Tags
-
LM358DT
STMicroelectronics
-
LM358DR
Texas Instruments
-
LM2904DR
Texas Instruments
-
LM358ADR
Texas Instruments
-
LM2904DGKR
Texas Instruments
-
LM324DR
Texas Instruments
-
MCP6006T-E/OT
Microchip Technology
-
MCP6006UT-E/OT
Microchip Technology
-
LM324PWR
Texas Instruments
-
LM2902PWR
Texas Instruments
-
LM2902DR
Texas Instruments
-
LM358P
Texas Instruments
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
